Comparison of Brain Activation in Response to Two Dimensional and Three Dimensional On-Line Games

OBJECTIVE: The present study assessed the difference in the brain activity of professional gamers (excessive players, but not addicts) in response to playing a 3-dimensional online game with an improved interface. METHODS: Twenty-three StarCraft I pro gamers and 16 StarCraft II pro gamers were recruited at Chung Ang University Medical Center. Brain activity in response to StarCraft I or II cues was assessed with a 1.5 Tesla Espree MRI scanner. RESULTS: StarCraft I pro gamers showed significantly greater activity in 4 clusters in response to the video game cues compared to StarCraft II pro gamers: right superior frontal gyrus, right medial frontal gyrus, right occipital lobe, and left medial frontal gyrus. StarCraft II pro gamers showed significantly greater activity in 3 clusters in response to the video game cues compared to StarCraft I pro gamers: left middle frontal gyrus, left temporal fusiform gyrus and left cerebellum. DISCUSSION: This is the first study to show the difference in brain activity between gamers playing either a 2-dimensional or 3-dimensional online game. Current brain imaging studies may confirm the pro gamers' experience when playing StarCraft II, a 3-dimensional game with an improved interface, relative to playing StarCraft I.

Effects of Intensive Early Rehabilitation Program in Postmastectomy Patients

OBJECTIVE: To investigate whether early postmastectomy rehabilitation program could improve shoulder function and upper limb edema. METHOD: 40 patients who underwent either a breast conserving procedure or a modified radical mastectomy were included. Among 40 patients, 20 patients recieved early postmastectomy rehabilitation program and 20 patients were recieved only instruction for exercise. The patients were assessed on the three days after surgery and one month after surgery. The range of motion (ROM) of shoulder, pain on mobility of shoulder and arm circumference were evaluated. RESULTS: One month after surgery, both groups showed improvements in shoulder motion range, pain and edema. But there were significantly better in early rehabilitation group than control group (p <0.05). CONCLUSION: We concluded that early postmastectomy rehabilitation program was beneficial in regaining the shoulder motion and in reduction of pain and edema.

Gait Analysis in Cervical Spondylotic Myelopathy at Pre- and Post-Surgery

OBJECTIVE: To investigate objectively the postoperative change of the gait pattern in patients with cervical myelopathy through gait analysis. METHODS: Thirty nine patients who underwent cervical decompression and fusion for cervical myelopathy were studied. Preoperatively, gait disturbance was present in all patients. The patients were evaluated with Nurick classification, Functional Independence measure (FIM) score and gait analysis using three dimensional motion analyzer before surgery, 1 week and 3 months after surgery. RESULTS: In the Nurick classification there was statistically significant change but no significant change in FIM score after surgery. In the gait analysis there were statistically significant improvements in all the linear parameters, kinetic (ankle plantarflexion moment) and kinematic (knee range of motion in swing phase) parameters (p<0.05). CONCLUSION: This study suggests that gait analysis can be used as a quantitative tools of postoperative gait improvement in patient with cervical myelopathy.

Assessment of Malnutrition in Rehabilitation Inpatients

BACKGROUND: The purposes of this study are to determine the prevalence of malnutrtion and its trend of change and to establish its relationship with dysphagia and functional outcome in rehabilitation patients. METHOD: We included 39 patients who were admitted into rehabilitation ward, and we evaluated nutri- tional parameters(serum albumin, serum lymphocyte, and weight loss) and dysphagia at the time of admi- ssion and four weeks after admission. We analyzed total rehabilitation inpatients and stroke patients who were major inpatients of rehabilitation ward. We measured Functional Independence Measure(FIM) and length of stay as clinical outcome scales. RESULTS: Malnutrition was observed in 76.9% of total patients and 69.6% in stroke patients at the time of admission. After four weeks, malnutrition was observed in 65.4% and 66.7%, respectively. Prevalence of dysphagia was 25.0% in non-malnourished patients and 22.0% in malnourished patients at the time of admission. It was not changed significantly after four weeks of rehabilitation. The length of stay was 31.3+/-16.0 days in non-malnourished patients and 39.8+/-19.4 days in malnourished patients. The FIM effi- ciency was 1.0+/-0.6 in non-malnourished patients and 2.3+/-6.5 in malnourished patients. CONCLUSION: Our findings suggest that malnutrition was highly prevalent in rehabilitation inpatients and it did not improved significantly through four weeks of rehabilitation. Therefore, it is important to be concerned about malnutrition and it needs proper and active management.

Gait Analysis in Degenerative Arthritis of the Knee at Pre- and Post-Total Knee Arthroplasty (TKA)

OBJECTIVES: To evaluate changes of the gait pattern and the clinical improvement in patients with degenerative arthritis of the knee after total knee arthroplasty (TKA). METHOD: Gait analysis was performed in 64 patients with degenerative arthritis of the knee at pre- and post-surgery 1 year, also Hospital for Special Surgery (HSS) knee score and Visual analogue scale (VAS) for clinical assessment were investigated. RESULTS: 1) In the HSS knee score and VAS, there were statistically significant improvement after surgery (p<0.05). 2) In the postoperative gait analysis, all the linear parameters except single limb support period were significantly improved (p<0.05). Single limb support period was improved, but statistically insignificant. All the kinematic and kinetic parameters also were significantly improved (p<0.05). CONCLUSION: This study suggests that gait analysis can be used for quantitative evaluation of the effects of total knee arthroplasty in patients with degenerative arthritis of the knee.

Early Subluxation of Hip in Children with Cerebral Palsy

OBJECTIVE: Hip deformity is one of the common problems in children with cerebral palsy. And it is important to detect hip subluxation or dislocation as early as possible. The purpose of this study is to find the incidence of hip subluxation in early childhood in patients with cerebral palsy. METHOD: We reviewed clinical and radiological records of children with cerebral palsy under 36 months of age. We measured migration index, acetabular index, center edge angle and neck shaft angle from hip X-ray of patients. RESULTS: Total 76 patients were included in this study. The mean of migration index was 4.5+/-7.5% at 8~12 months, 10.9+/-11.9% at 13~24 months, and 18.2+/-13.0% at 25~36 months (p<0.05). Twenty one patients (27.6%) were above 25% on the migration index. The neuromotor type of cerebral palsy in 21 patients with hip subluxation, were spastic in 20 (95.2%) except one child. The incidence of hip subluxation was 25.0% (8/32) for quadriplegia, 29.6% (8/27) for diplegia and 50.0% (4/8) for hemiplegia. The acetabular index was significantly higher and the center edge angle was lower in the subluxated hip group than in the non-subluxated hip group, though no significant difference in the neck shaft angle. CONCLUSION: We concluded that the hip subluxation in cerebral palsy can occur under 36 months of age with a relatively high incidence. Therefore, it is recommended to evaluate the hip of cerebral palsy with radiological as well as clinical examination in early childhood.

The Effect of Complications of Stroke Patients on Prognosis during Rehabilitation Management

OBJECTIVE: To investigate complications of stroke patients with regard to incidence, predisposing risk factors and their effect on the patients's prognosis during rehabilitation management. METHOD: Two hundred fifty nine patients with stroke admitted to Department of Rehabilitation Medicine were included in this study. We analyzed types of stroke, incidence of complications, outcome of rehabilitation treatment and the length of the hospital stay. RESULTS: Of the 259 patients who had received rehabilitation, shoulder pain occurred in 59 patients (22.8%), depressions in 24 (9.3%), falls in 24 (9.3%) and pneumonia in 21 (8.1%); 112 patients (42.9%) had a total of 174 complications. The incidence of complication was higher in patients who had lower initial FIM score or previous cardiac disease. The patients with complication had longer rehabilitation hospital stay and lower FIM gain and efficacy. CONCLUSION: Early detection and treatment of the complications of acute stroke patients during rehabilitation will shorten the length of the hospital stay and improve the overall prognosis of the patients.